WO2005033921A1 - Real time variable digital paper - Google Patents
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- WO2005033921A1 WO2005033921A1 PCT/US2004/028870 US2004028870W WO2005033921A1 WO 2005033921 A1 WO2005033921 A1 WO 2005033921A1 US 2004028870 W US2004028870 W US 2004028870W WO 2005033921 A1 WO2005033921 A1 WO 2005033921A1
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- input device
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
- G06V30/1423—Image acquisition using hand-held instruments; Constructional details of the instruments the instrument generating sequences of position coordinates corresponding to handwriting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/1444—Selective acquisition, locating or processing of specific regions, e.g. highlighted text, fiducial marks or predetermined fields
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
- G06V30/1426—Image acquisition using hand-held instruments; Constructional details of the instruments by sensing position defining codes on a support
Definitions
- the present invention generally relates to the integration of handwritten, paper-based information with digital processes and, in particular, relates to systems and methods for capturing, processing, interpreting and verifying handwritten information using digitally capable writing implements.
- the ability to capture and share information digitally continues to alter greatly the way people communicate.
- personal computers and the Internet have become ubiquitous and now permeate the lives of many people on both a business and personal level.
- cellular and other wireless telephony technologies are increasingly adding to the capability and the diversity of ways that digital information can be transferred.
- natural input such as handwriting information on traditional paper, is still relied upon.
- Natural input has the advantage that it does not require people to learn how to operate computers and other electronic devices, as well as that it has no impediments as to when or where the information is recorded.
- a writer choosing ordinary paper as the desired medium to record information is not encumbered by a large and bulky computer and is not constrained to the physical location of the computer.
- information handwritten on a piece of paper serves as the only record of that information.
- a subset of the Anoto pattern is printed on the face of a sheet of ordinary paper.
- a writing implement equipped to read the position code referred to generally as a digital pen, is used to write on the position-coded paper.
- the digital pen reads the position codes encountered by the digital pen and either stores or transmits the position data to a computer. By reconstructing the positions visited by the digital pen, a representation of the information handwritten on the position-coded paper can be created and stored as a digital data and image file.
- the use of a digital pen and position-coded paper eliminates the need to separately scan a piece of ordinary paper to transfer the information written on it into a digital format. However, a need exists for delivering the position-coded paper as variable print-on-demand format.
- the present invention overcomes the disadvantages of current methods and systems of converting natural input to meaningful digital information by providing variable print on demand digital paper systems and methods.
- the systems and methods herein combine form design, a digital print shop, the capture of natural input, and the interpretation and validation of the digital representation of the captured natural input to provide a robust system that can be used to populate databases as well as feed workflow and back end processes.
- the form design is capable of combining custom templates with field definitions for the template and variable data overlays that can be merged with position coded patterns to print, on demand, unique instances of digital forms such that each instance of any document occupies a coordinate space that is mutually exclusive with respect to the position code coordinate space of all other documents.
- the digital forms information is handwritten on the digital form using a digital input device such as a digital pen.
- the handwritten information captured by the digital input device is then transferred to a computer system where the correlation, the interpretation, recognition and validation programs combine to create an effective conversion of the handwritten information to a computer recognizable meaningful format.
- Fig. 1 is a schematic representation of a print on demand system for creating digital forms according to an embodiment of the present invention
- Fig. 2 is a schematic representation illustrating some of the ways in which a digital pen can communicate with a computer system according to an embodiment of the present invention
- Fig. 3 is a schematic representation of a print on demand system for creating digital forms according to another embodiment of the present invention
- Fig. 4 is an illustration of a print dialog box used to print a position code onto ordinary paper according to an embodiment of the present invention
- Fig. 5 is a schematic representation of a virtual position code coordinate space illustrating an exemplary way to assign a subset of the coordinate space to an instance of a digital form according to an embodiment of the present invention
- Fig. 1 is a schematic representation of a print on demand system for creating digital forms according to an embodiment of the present invention
- Fig. 2 is a schematic representation illustrating some of the ways in which a digital pen can communicate with a computer system according to an embodiment of the present invention
- Fig. 3
- FIG. 6 is a schematic representation of a system for interpreting, recognizing and validating representations of handwriting obtained from digital input devices according to an embodiment of the present invention
- Fig. 7 is a flow chart illustrating a method of transforming representations of handwritten information into computer recognizable text according to an embodiment of the present invention
- Fig. 8 is a flow chart illustrating a method of for interpreting and recognizing representations of handwriting obtained from digital input devices according to an embodiment of the present invention
- Fig. 9 is a flow chart illustrating a method of for validating interpreted representations of handwriting obtained from digital input devices according to an embodiment of the present invention
- Fig. 10A is an illustration of a computer screen shot illustrating various validation and interpretation techniques according to an embodiment of the present invention
- Fig. 10A is an illustration of a computer screen shot illustrating various validation and interpretation techniques according to an embodiment of the present invention
- Fig. 10A is an illustration of a computer screen shot illustrating various validation and interpretation techniques according to an embodiment of the present invention
- FIG. 10B is another illustration of a computer screen shot illustrating various validation and interpretation techniques according to an embodiment of the present invention
- Fig. 11 A is an illustration of an exemplary application where digital pens are used to hand write information onto a digital form having a position code thereon, according to an embodiment of the present invention
- Fig. 11 B is an illustration of the digital form of Fig. 11 A after performing interpretation, recognition and validation techniques to convert the handwritten information into computer recognizable text according to an embodiment of the present invention.
- Digital Paper In order to facilitate the efficient tracking and storage of naturally recorded information, various embodiments of the present invention take advantage of the flexibility of "digital paper.” Digital paper provides a surface upon which position code is applied. The position code essentially overlays a two dimensional coordinate space on the surface of the paper such that each set of coordinates can be unambiguously identified.
- a digital input device is used to read the coordinates of the position code to track the handwritten information.
- digital paper as used herein is not limited to paper based products, however. Rather, digital paper as used herein, refers to any surface upon which a position code can be printed or otherwise situated such as, for example, a white board or an easel board. Any unambiguous pattern can be used to define the position code, printed or otherwise applied to a surface, so long as a corresponding digital input device is provided capable of reading the position code.
- one position coding technique suitable for use herein is known generally as the Anoto pattern.
- the Anoto pattern consists of small dots that are slightly displaced from a grid structure in a manner that forms a pattern.
- one current implementation of the Anoto pattern constructs a pattern defined by thirty six dots that are each one-tenth of a millimeter in diameter, arrayed on a square grid that is approximately 2x2 millimeters. By displacing the dots with respect to X and Y axes, over 4x10 21 possible square combinations can be derived.
- the Anoto pattern conceptually consists of a coordinate space map where each square combination is represented only once. This arrangement results in a map of dots covering approximately 1.8 million square miles.
- each sheet of "digital paper" carries only a small portion of the Anoto pattern, which appears as a light gray dusting on the surface of the paper.
- the Anoto pattern is the subject of a number of U.S.
- a digital input device referred to generally as a digital pen
- a digital pen is used to read the map of dots.
- Commonly available digital pens are slightly larger than ordinary pens, but otherwise are very similar in appearance thereto.
- Typical digital pens include a scanning device comprising an infrared camera and an imaging processing system.
- a writing implement, such as an ink tip, is typically positioned proximate to the scanning device to provide visual feedback to the user so that a physical ink mark is left on the paper as the user writes thereupon.
- the digital pen After the digital pen presses against a surface containing an appropriate position code pattern, the pen begins to take a series of snapshots of the position code at a given rate, often more that 50 snapshots per second, until the digital pen is lifted from the surface. Every snapshot read by the digital pen contains sufficient information to calculate the exact position of the digital pen on the unambiguous position code.
- the digital pen may also include a memory device for recording the position codes read by the digital pen. This type of digital pen communicates with a computer system when it is docked in a docking station or cradle designed to extract the information from the digital pen and transfer it to the computer system.
- the digital pen may also contain a plug that transfers the information when connected by an USB cable to an USB port of the computer system.
- Digital pens may also be equipped with a wireless transmitter.
- digital pens are currently available that utilize the 802.11 family or Bluetooth wireless technology to transmit either directly to a computer system or cellular device, or to an intermediate system that conveys the information from the digital pen forward to the computer system or cellular device.
- Fig. 1 illustrates diagrammatically a variable print on demand system 10 that takes advantage of the position coding on paper products and is capable of enhanced integration of handwritten information with digital processes to direct work flow.
- a pattern server 12 also referred to herein as an allocation server, is used to assign a position code to a document.
- the position code can comprise any unambiguous pattern information, such as the Anoto pattern devised by Anoto AB of Sweden.
- the pattern server 12 can be any computer system, including a desktop office computer, that is capable of executing an allocation program 14.
- the allocation program 14 assigns a minute subset of the entire coordinate space of the position code to any particular document.
- the document may comprise, for example, a blank piece of paper; a collection of blank pieces of paper such as, for example, a book or a brochure; or a preprinted form.
- the allocation program 14 also keeps track of the subset of the position code assigned to each particular document or makes the position information available to other data sources.
- a separate program (not shown) on the pattern server 12 prepares the pattern information for printing by creating a postscript file 16 containing the pattern information.
- the postscript file 16 can then be printed onto ordinary paper using any suitable printer 18, such as a typical office laser printer or a high end production laser printer like a Xerox Docutech or HP Indigo.
- a piece of paper having the pattern information printed thereon is referred to herein as digital paper 20.
- a remote document production facility can produce, print and distribute batches of paper that includes the appropriate position codes printed on the surface of the paper.
- the paper is then stored until needed.
- a user may write information onto the digital paper 20 using a digital pen 22.
- the digital pen 22 reads the positions on the paper over which the pen point moves and transfers this information to a suitable computer system 24, where it is transferred to a service provider (ASP) or to an application running locally on a personal computer, local area network (LAN), wide-area network (WAN) or any web service provided through the Internet.
- ASP service provider
- the transferred information is processed (i.e., correlated to the original image and subjected to handwriting interpretation, verification, signature authentication and image creation) and stored on a device, such as, for example, a correlation server, for storage and subsequent processing.
- the computer system 24 may optionally be the same computer system that runs the pattern server 12.
- the position code information read by the digital pen 22 is saved in a data file 26 that comprises a series of digital coordinates found on the unique position code that represents where the handwritten information was written by the digital pen 22.
- the appropriate workflow 28 can be determined and implemented based upon the intended application.
- the workflow may comprise pushing or pulling upstream or downstream systems with data, populating databases, sending emails containing a copy of the digital form, sending email reminders based upon detected content in the digital form, or indexing images and related data for subsequent lookup.
- any technology can be used to transmit the information recorded by the digital pen 22 to the computer system 24.
- the digital pen 22 can transmit the information using a wireless technology to a wireless telephony device 30 such as, for example, a cellular telephone, a desktop computer 32, laptop computer 34 or personal digital assistant (PDA) 36, such as a Palm or Blackberry device, that is suitably equipped to receive the wireless transmission.
- a wireless telephony device 30 such as, for example, a cellular telephone, a desktop computer 32, laptop computer 34 or personal digital assistant (PDA) 36, such as a Palm or Blackberry device, that is suitably equipped to receive the wireless transmission.
- PDA personal digital assistant
- the digital pen 22 may be equipped to transmit to an external device such as a docking station or cradle 38 that can communicate directly with the computer system 24.
- the digital pen 22 may be equipped with a plug that may connect the digital pen 22 to the computer system 24 via for example, an USB cable or FireWire to an USB or FireWire port of the computer system 24.
- the various embodiments of the present invention can also be integrated with data recorded on a tablet
- a system 50 that combines a template or form overlay with the digital paper technology.
- a request is issued to create a form.
- a first server 52 provides the appropriate combination of form templates and overlays, such as by using a suitable digital form definition program 54.
- the digital form definition program 54 provides tools to design the layout 56 of the physical form and can also be used to associate an overlay with an existing paper form.
- the form template comprises fields, text, graphics and any other indicia required by each instance of a desired form.
- the form template also allows for the creation of fields that are associated with definitions that are to be subsequently interpreted.
- the form template may include deterministic fields such as check boxes, radial buttons and similar option fields.
- the digital form definition program may also optionally allow a user to assign types to fields on a particular form. For example, fields may be designated as signature fields, hand written input fields (e.g. date, state, zip code, quantity, alpha and or numeric), symbol fields and graphics fields. The assignment of field types allows back end software that interprets the fields to be customized to the specific field type as will be explained more fully below.
- the template can be saved and recalled to generate quickly several instances of the same form.
- the overlay provides information from any suitable data source, such as a database that is to be merged with the particular instance of the digital form being created.
- This information obtained from the data source may comprise data that is unique to each instance of a form, or alternatively, the data obtained by the overlay for the form may comprise repetitive data.
- the overlay may comprise variable information such as demographic or personal data from a database, sequential control numbers, date and time stamps or other types of information.
- the layout 56 can be generated and saved for example, in any printable format including the portable document format (PDF), or in any word processing format.
- a second server 62 defines a pattern or allocation server such as the pattern server 12 described above with reference to Fig. 1.
- the second server 62 manages the complete digital print space and runs an allocation program 64 that assigns a position code comprised of a subset of the position code coordinate space to an instance of a form to be created.
- the unique position code pattern 66 assigned by the allocation program 64 is merged with the layout 56 created on the first server 52 and is printed using a suitable printer 68 to produce a digital form 70.
- the system 50 further preferably stores the unique position code pattern and the particular layout 56 associated with the unique position code pattern, together with a unique identifier, so that information regarding the particular instance of any digital form can be later retrieved and examined.
- a user hand writes information onto the digital form 70 using a digital pen 72.
- the digital pen 72 reads the position information, and transfers a file, such as a data file, to a third server 74.
- the third server serves as a correlation server for storage and subsequent processing of the digital representation of the handwritten information recorded by the digital pen 70.
- the appropriate workflow 76 can be implemented based upon the intended application.
- the first, second and third servers 52, 62 and 74 can be implemented on the same or different physical computers.
- a dedicated layout program such as digital form definition software 54 is not required to practice the present invention.
- any computer user printing a layout 56 can optionally have an option available to them, within a customized print dialogue box 80, to print the particular instance of the form with a unique position code.
- the print dialog box 80 may include a "Print with Pattern" checkbox option 82.
- any document printed with this option would be routed to the pattern allocation program 64 on the second server 62, which could be either on-site or provided as an ASP service by a commercial printing company.
- the allocation program 64 then applies the unique position code pattern and overlay to the document, and optionally direct the printed output to the appropriate laser printer.
- that printer could be the closest printer in proximity to the person requesting the document that is capable of the appropriate resolution to output the position code pattern.
- the digital forms may be generated and printed at a commercial printer facility, with each instance of the digital form bearing a unique position coding pattern and the appropriate form overlay.
- part of the position code pattern and/ or overlay may be preprinted, for example, by a commercial printer.
- the system 50 preferably stores the unique position code pattern and the particular layout 56 associated with that unique position code pattern together with a unique identifier so that information regarding the particular instance of any digital form can be later retrieved and examined.
- This unique identifier can comprise any unique key or other indexing scheme that allows a subsequently received data file to be properly and unambiguously associated with the correct layout 56.
- each instance of a digital form is provided a unique position code, preferably in a contiguous coordinate range selected from a subset of the position code coordinate space such that the entire range of coordinates assigned to a particular instance of the form is mutually exclusive to the all other instances of all digital forms and other digital documents.
- the allocation program maps the range of coordinates for the entire position code space 90 across a two dimensional surface from X- ⁇ ,Y ⁇ to X n ,Y n .
- the allocation program assigns a given instance of a digital form 92 a position code that encompasses the coordinate space ranging from X
- the allocation program will ensure that no other digital document is assigned a position code that has a coordinate space that intersects the range of X
- the unique identifier for each instance of a digital form can be an expression of the subset of the coordinate space assigned to that form. For example, a unique identifier may be expressed in terms of the upper left hand corner coordinates to the lower right hand corner coordinates, e.g., Xj,Y j to X R ,Y
- the unique identifier may be expressed in terms of the upper left hand corner coordinates and the size of the digital form to be printed, e.g., XJ.YJ and 8 1/2" x 11".
- Any single coordinate pair on a digital form that is read by a digital pen thus unambiguously belongs to only one previously assigned mutually exclusive subset of position code coordinates from the coordinate space and thus one particular instance of a digital form. This allows a simple search through the identifiers stored by the allocation server to associate that document with other digitally stored data related to that data.
- the coordinate pair read by the digital pen is compared against each stored identifier to see if that coordinate pair falls within the range of coordinate space bound by the identifier.
- the digital document read by the digital pen is unambiguously associated with that identifier. As such, there is no need for the user to scan, mark, or otherwise acknowledge a unique control number or key on the digital form because the coordinate range of the form is the key or control identifier. However, if the digital form is created wirelessly or has a partially preprinted pattern, the user may need to scan, mark, or otherwise acknowledge a unique control number or key on the digital form.
- the above discussion characterized the position code coordinate space in terms of a two dimensional map for purposes of clarity of discussion.
- a system 100 is provided for interpreting and validating information retrieved from digital forms.
- the system is configured to accommodate a single data file generated by a single digital pen, or several data files may be combined where each data file is associated with a select one of multiple digital pens that have written on the digital form. This allows multiple persons to collaborate in the editing of a document. For example, user 1 provides handwritten information on a first part of the digital form 102 using a first digital pen 104.
- each digital pen 104, 106 transmits a data file 108, 110 recorded thereby to an correlation server 112 and a corresponding data repository 114.
- the first digital pen 104 is schematically illustrated as transmitting its data file 108 via a wireless transmission and the second digital pen 106 is schematically illustrated as using a cradle 116 to transmit the data file 110 via an intermediary computer 118.
- each user use their own digital pen. As such, there would be a one to one correspondence between users and data files.
- a copy of the layout of the form can be electronically transferred into a tablet PC 120.
- a user of the tablet PC can see on the tablet PC 120, a digital representation of the form 102 and use a technology such as Microsoft Digital Ink by Microsoft Corporation of Redmond Washington to create yet another data file 122 that is transmitted to the correlation server 112.
- the tablet PC 120 will also need to know the unique identifier of the digital form 102.
- each digital pen 104, 106 used to handwrite upon the digital form 102, and the tablet PC 120 used to create a data file provides an identifier that associates a particular digital pen or tablet PC with an associated data file.
- the first and second digital pens 104, 106 and tablet PC 120 are preferably capable of providing a time stamp to their associated data files so that a chronological history can be constructed to determine exactly when a handwriting was applied to the document.
- the correlation server 112 comprises a program, such as an acquisition client 124 that collects the data files 108, 110, 122 created from the various digital pens 104, 106 and tablet PC 120, and stores the associated files in the data repository 114 along with any other useful information that can be obtained, such as the digital pen identifier associated with each data file, and a date and time stamp associated with each data file.
- the data files and other collected data may also be matched up and stored together with the unique identifier, form layout and other previously gathered information concerning the specific instance of the digital form 102.
- the process 200 for merging the data files to a particular instance of a digital form includes storing the data files generated by digital pens and tablet PCs in a database at 202.
- the time of creation of the data in each data file is stored in the database at 204, and the identifier of the digital pen, tablet PC, or wireless device such as, for example, a cellular telephone that generated each data file is stored in the database at 206.
- Interpretations and recognitions are then performed on the representations of handwriting stored in the data file(s) at 208, and the generated interpretations are stored at 210.
- Validation (checking for accuracy of the interpretation) of the interpretation and recognition is performed at 212, and the results of the validation are stored at 214.
- the system 100 uses various forms of character recognition to interpret or recognize the representations of handwritten data extracted from the data files at 306. Once the system has completed this process, the interpreted results are stored at 308 for subsequent processing.
- the system 100 includes an interpretation and recognition program 126 to interpret the data files 108, 110, 122 associated with the unique instance of the digital form 102.
- the interpretation process is a first pass that attempts to transform the representations of handwritten information in the associated data files into computer compatible formats. For example, character recognition of the data file(s) is carried out. Where field definitions of the template file are available, character recognition can be carried out with a relatively high rate of precision, especially for the deterministic fields because the character recognition software already knows the type of data expected in a particular location.
- the interpretation program 126 By applying handwriting recognition software technology, data elements can be captured from the document and used to feed down stream systems, to populate a database or to index the image for subsequent look-up.
- the interpretation program 126 thus essentially hypothesizes the actual field values and other information recorded by the data file(s).
- the interpretation program 126 can take advantage of handwriting recognition software for decoding the handwritten information.
- the interpretation program may also further include specialized programs, such as dedicated signature recognition and analysis program for analyzing signature fields.
- the signature recognition program can comprise a specialized set of analysis tools useful for signature recognition.
- the signature recognition program not only converts the signature to text, but also further provides tools to detect fraud by attempting to authenticate the signature to establish that the person who signed the digital form is really who that person purports to be.
- a validation process is provided to allow for the correction of data that was misinterpreted during interpretation.
- the validation process 400 receives the interpretation of the data files at 402. If a field is critical, the validation process 400 may require a proactive confirmation at 404. Otherwise, the validation process 400 prompts the user to supply correct values to misinterpreted fields at 404.
- the validated information is stored at 406.
- the validation process may be completed numerous times and by more than one person.
- the user of the validation process does not need to be the author.
- the converted text is made available for authentication.
- the author of a data file can log into the computer system using a web browser and view the results of the conversion.
- a validation program 128 duplicates the specific instance of the digital form back to the authorized user via the web page.
- the data file is displayed on a computer screen 130 in a format that shows the strokes made on the form by the author(s) in a grayed out format with the converted text displayed adjacent the appropriate portions of the data file.
- the validation program functions similar to a word processing spell checker, presenting the most closely matching words as well as the option of keying in the correct interpretation.
- the recognition program displays on the computer screen 130 a field having the value DATA 6.
- the correct value should be DATA 5.
- the interpretation program 126 may present a validation window 138 that hypothesizes a number of alternate interpretations 140.
- a user is provided with up to five hypothesized field values, and is also given the option of selecting a custom value 142 if none of the hypothesized values are correct.
- the interpretation and validation may also require a positive confirmation on certain fields if a particular application contains a field that is critical. For example, a user must confirm at confirmation box 144 whether value DATA 7 is correct before continuing the program.
- the forced positive user acts required to validate the form may deter cursory examination by an inattentive user of the system. However, business rules will typically determine whether the interpreted fields should be automatically verified, or whether positive user interaction is required.
- Another example of a validation window is illustrated in Fig. 10B.
- the validation window 146 like the validation window 138 illustrated in Fig.
- the validation window 146 illustrates the digitally recorded representation of the field currently being examined in handwriting box 148.
- a number of alternate interpretations 140 are presented, and a custom value 142 is available if the user does not find the proper value of the field in the alternate interpretations box.
- Navigation controls 150 allow the user to move between fields on the form and information window 152 provides information such the digital form name, trial name, field name and field type.
- the computer then saves to the data repository, the original data file, the first pass computer generated interpretation of the data file (where appropriate), the corrected file, and the validation file. As such, a robust auditing path is preserved for downstream processing.
- a second copy of each data file may optionally be stored in the data repository in a non-modifiable file format, such as a .tif or .pdf formatted file. Further, preserving the data file facilitates the creation of a database of samples useful for regression testing and testing with alternate interpretation software.
- the various files may be stored for example, in a database as a record associated with the indicator. The various files may also be shared with other information systems. The web viewer may also support the examination of the interpreted and validated data files by the appropriately -Un ⁇
- the system 100 may provide various levels of user accessibility and interaction with the various components of the system.
- the system has now successfully extracted the handwritten information into computer recognizable meaningful digital format that can be used to populate a database as well as perform other downstream workflow functions.
- Images of the digital forms can be generated showing either the original digital representation of handwritten information recorded by the digital input devices, or a version of the digital form where the representations of the handwritten information is replaced by computer recognized text as shown in Figs. 11 A and 11 B.
- the system can be selective in which fields are displayed as computer text and which fields remain as digital representations of the handwritten data when rendering images of the digital form.
- a particular application may provide an image of a digital form where certain fields, such as a signature field, remain as a representation of the handwritten information and other fields are converted to computer text.
- An example of such an arrangement is shown in Fig 11 B. Accessing Data Related to the Instance of a Digital Form
- the system fetches all of the relevant information that can be ascertained. For example, as described more fully herein, the unique identifier associated with an instance of a digital form can be found by matching any coordinate read from a particular data file with the range of coordinates bound by a given identifier. There are other ways to find the corresponding additional data, however.
- a doctor may use the same digital pen to sign for samples of drugs on a digital Sample Receipt Form, as illustrated in Figs. 11 A and 11 B.
- Each digital pen can be uniquely identified.
- the computer system can index into the data repository by first filtering against the identifier of the doctor's digital pen. Next, the unique identifier stored with each instance of the form is searched and matched up to the coordinates recorded in the data file. Once the computer matches up the data file to the appropriate instance of the form, any data previously associated with the instance of the form may be used to perform further processing.
- the digital form comprises a template 502 that defines the boxes and fields available on the digital form.
- Various specific types of fields are also displayed.
- the digital form includes a signature field 504 for receiving the signature of a doctor, and several deterministic fields seen as the check boxes 506.
- the digital form also includes overlay data 508, which was pulled from one or more data sources and merged with the template.
- Figs. 11 A and 11 B also illustrate how the various embodiments of the present invention can be implemented in a drug sample tracking application where a Sample Receipt form is printed on digital paper bearing a position code.
- a drug representative fills in the "Units Requested," “Lot” and “Expiration Date” of the Sample Receipt Form using a first digital pen.
- a doctor signs and dates the Sample Receipt Form using a second digital pen. This can be carried out in a manner as described more fully herein with reference to Fig. 6.
- the Sample Receipt Form is created where all of the handwritten information (with the exception of the signature) is converted to computer text.
- the Patient Linkup® Enterprise system provided by The Standard Register Company of Dayton Ohio is used to link patient information recorded on digital paper with other patient specific information.
- the admission process starts with admitting personnel gathering certain patient information and entering it into the computer.
- the computer knows which specific forms associated with the care of the patient are required, so those forms are generated and printed out. For example, consent forms, admission forms, insurance forms, nurse's notes, etc. can be printed out, where each form bears a mutually exclusive range of the position code coordinate space.
- the data is electronically delivered to a computer system at an appropriate host where the data is archived and organized.
- a doctor assigned to the patient can then log into the computer system and review the complete patient history.
- a pharmaceutical sales rep sample receipt form and a patient lookup form are described herein, such applications should not be construed as limiting the scope of the present invention. Rather, the applications are merely exemplary.
- Other examples of the vast number of forms that can benefit from the various embodiments of the present invention include sales call reports used by a pharmaceutical sales representative, and booth lead forms used for recording information requests about a conference meeting. It will be appreciated that the systems provided herein can include security features to protect confidential information.
- symmetric or asymmetric cryptography may be employed at any or all stages of the delivery of digital information from one source to another.
- Information can be shared across separate networks using Public Key Infrastructure (PKI) or other suitable cryptographic encoding schemes.
- PKI Public Key Infrastructure
- terms like "preferably,” “commonly,” and “typically” are not utilized herein to limit the scope of the claimed invention or to imply that certain features are critical, essential, or even important to the structure or function of the claimed invention. Rather, these terms are merely intended to highlight alternative or additional features that may or may not be utilized in a particular embodiment of the present invention.
Abstract
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CA002535042A CA2535042A1 (en) | 2003-09-15 | 2004-09-07 | Real time variable digital paper |
EP04783198A EP1668479A4 (en) | 2003-09-15 | 2004-09-07 | Real time variable digital paper |
BRPI0414395-7A BRPI0414395A (en) | 2003-09-15 | 2004-09-07 | system for digitally processing and interpreting data entered into a document, for producing custom digital documents, and for capturing recorded information about a digital document, and methods for capturing and processing information captured in a single digital document, for producing on-demand document printing to capture information recorded in a single digital document |
JP2006526926A JP2007506185A (en) | 2003-09-15 | 2004-09-07 | Real-time variable digital paper |
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US10/925,533 US20050060644A1 (en) | 2003-09-15 | 2004-08-25 | Real time variable digital paper |
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EP (1) | EP1668479A4 (en) |
JP (1) | JP2007506185A (en) |
AU (1) | AU2004279030A1 (en) |
BR (1) | BRPI0414395A (en) |
CA (1) | CA2535042A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
CA2535042A1 (en) | 2005-04-14 |
BRPI0414395A (en) | 2006-11-21 |
EP1668479A4 (en) | 2009-11-11 |
JP2007506185A (en) | 2007-03-15 |
AU2004279030A1 (en) | 2005-04-14 |
US20050060644A1 (en) | 2005-03-17 |
EP1668479A1 (en) | 2006-06-14 |
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